Everybody wonders about what is at the bottom of the ocean, and throughout history many have attempted to answer this daunting question.
The seabed is the bottom of the ocean. Contents. 1 Structure. 1.1 Depth below seafloor. 2 Sediments. 2.1 Terrigenous and biogenous; 2.2 Hydrogenous and.
It may seem crazy, but we know more about the surface of Mars than we do about the ground beneath our oceans. So, what's at the bottom of.
An American undersea explorer has completed what is claimed to be the deepest manned sea dive ever recorded -- returning to the surface.